so, using only bb-ref's "most similar players through age" as a guide... i'm looking at the most similar players to shin soo choo at age 29 (topped by bernard gilkey) and the most similar players to carlos beltran at age 35 (topped by andre dawson). and i'm looking at the average remainder of the careers of those top six players from age 31 onward, and age 37 onward. it's flawed, i know. the ten players most similar to shin shoo choo at age 29, who were active at age 31, averaged three years of continued play over 371 games, worth 2.3 WAR, with a 0.268/0.329/0.411 slash line and an OPS+ of 94. the six players most similar to carlos beltran at age 35, who were active at age 37, averaged 3 years of continued play over 326 games, worth 2.1 WAR, with a 0.260/0.337/0.439 slash line and an OPS+ of 106 (dale murphy's 26 age-37 games with an OPS+ of 1, , worth -0.9 WAR, tends to hurt the projection) so... based on this highly flawed analysis, you'd probably expect to get about the same total level of production over a three year deal for either beltran or choo, though beltran's production would be higher while he is on the field, and choo being more likely to be on the field forthe duration. mind you, these comparables are really out hte window, as their current production in their age-31 and -36 seasons will upse thte similarity scores a bit. i fully expect, for instance, dale murphy to drop out of beltran's comparables, and an excellent season by choo may also put him into a higher echelon of comparables. but for an early stab in the dark using the wrong type of knife, it's not a wholly unreasonable thing to suggest that there could be a real shoice to be made.